557326013 has 4 divisors (see below), whose sum is σ = 563071740. Its totient is φ = 551580288.

The previous prime is 557326009. The next prime is 557326061. The reversal of 557326013 is 310623755.

557326013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 447872569 + 109453444 = 21163^2 + 10462^2 .

It is a cyclic number.

It is not a de Polignac number, because 557326013 - 2² = 557326009 is a prime.

It is a super-2 number, since 2×557326013² = 621224569532952338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557326093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872718 + ... + 2872911.

It is an arithmetic number, because the mean of its divisors is an integer number (140767935).

Almost surely, 2^557326013 is an apocalyptic number.

It is an amenable number.

557326013 is a deficient number, since it is larger than the sum of its proper divisors (5745727).

557326013 is an equidigital number, since it uses as much as digits as its factorization.

557326013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745726.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 557326013 is about 23607.7532391373. The cubic root of 557326013 is about 822.9430301409.

Adding to 557326013 its reverse (310623755), we get a palindrome (867949768).

The spelling of 557326013 in words is "five hundred fifty-seven million, three hundred twenty-six thousand, thirteen".